good design bluetooth laser virtual keyboard

Specifications good design bluetooth laser virtual keyboard

1.laser virtual keyboard

2.2014 new fashion

3.bluetooth

4.mouse fuction

good design bluetooth laser virtual keyboard                           

Specification:
Pattern Projector
Keyboard light source:	Red laser diode
Keyboard layout:	Approx.19mm sized QWERTY layout
Projection size:	Approx. 100mm(H)*240mm(W)
Projected Keyboard location:	Approx.80mm from keyboard device
Required projection surface	Non-reflective,opaque flat surface
Electrical Characteristics
Recognition rate	Over 350 characters per minute
Operation Surface	Any opaque flat surface
physical Dimension:	78mm x 40mm x 20mm
Weight:	Approx. 60g
Keyboard language:	English
Charger:	Rating 5V 500mA
Battery capacity:	Polymer rechargeable battery,600mAh(MA X) @ 3.7V
Battery working time	150 minutes
Battery charging time	90 minutes
Keystroke Sound:	Built in buzzer(Mute on/off the sound)
Visibility:	Good contrast up to 1800 lux ambient illumination
Effective key stroke:	Approx. 2mm
USB interface	USB 1.1 and 2.0.USB,HID Ver.1.0
Bluetooth	v3.0(class2),HID Profile Ver.1.0
Frequency Range	2402-2480MHz
Channel	79
Modulation	GFSK
Environmental Conditions
Working Temperature	Approx.-10~40°C/90%RH
Storage Temperature	Approx.-20~40°C/~90%RH